Regeneration device of phenylenediamine hydrogenation reaction catalyst

Abstract

The utility model discloses a regeneration device of a phenylenediamine hydrogenation reaction catalyst, which comprises a base and a regeneration box installed on the base through a sliding mechanism, a first stirring mechanism and a second stirring mechanism are installed inside the regeneration box, and a driving mechanism and a swing mechanism connected with the driving mechanism are installed outside the regeneration box. The driving mechanism drives the first stirring mechanism and the second stirring mechanism to stir the hydrogenation reaction catalyst while driving the regeneration box to shake through the swinging mechanism; the swing mechanism comprises a crankshaft, the outer ring of the crankshaft is rotationally sleeved with a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected with a connecting rod, and the end, away from the connecting sleeve, of the connecting rod is provided with a vertical plate through a hinge seat. Through the first stirring mechanism and the second stirring mechanism, an organic solvent can permeate the surface of a hydrogenation reaction catalyst and is uniformly distributed, so that the efficiency of adsorbing the organic solvent by the hydrogenation reaction catalyst is improved, and other impurities such as organic matters on the surface of the hydrogenation catalyst are quickly removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of phenylenediamine production, and particularly relates to a regeneration device for a phenylenediamine hydrogenation reaction catalyst. Background Art

[0002] During the use of hydrogenation catalysts, the activity of the catalysts is reduced or even completely deactivated due to factors such as micropores being blocked by organic matter, active components being covered by organic matter, and active components falling off. Therefore, it is necessary to regenerate the deactivated hydrogenation catalyst to restore most of the activity of the catalyst so that it can be reused.

[0003] Among them, the solvent treatment regeneration method can remove impurities attached to the surface through the dissolving effect of the solvent. First, the deactivated catalyst is immersed in a suitable organic solvent to remove organic matter and other impurities on the catalyst surface through the dissolving effect. However, in the prior art, the catalyst is mostly immersed in the solvent at rest, and the solvent cannot quickly penetrate the surface of the catalyst, making the dissolving efficiency of the solvent treatment regeneration method low. Utility Model Content

[0004] The utility model aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] A regeneration device for a phenylenediamine hydrogenation reaction catalyst comprises a base and a regeneration box mounted on the base through a sliding mechanism, wherein a first stirring mechanism and a second stirring mechanism are mounted inside the regeneration box, and a driving mechanism and a swinging mechanism connected to the driving mechanism are mounted outside the regeneration box, wherein the driving mechanism drives the first stirring mechanism and the second stirring mechanism to stir the hydrogenation reaction catalyst while driving the regeneration box to shake through the swinging mechanism;

[0006] The swing mechanism comprises a crankshaft, the outer ring rotating sleeve of the crankshaft is provided with a connecting sleeve, the outer wall of the connecting sleeve is fixedly connected with a connecting rod, the end of the connecting rod away from the connecting sleeve is installed with a vertical plate through a hinge seat, and the vertical plate is fixedly connected to the base.

[0007] As a preferred embodiment of the above technical solution, the first stirring mechanism includes:

[0008] A stirring shaft 1, one end of which is rotatably mounted on the inner wall of the regeneration box, and the other end passes through one side of the regeneration box and is fixedly connected to the crankshaft, and a driving wheel is provided on the outer ring fixed sleeve.

[0009] As a preferred embodiment of the above technical solution, the second stirring mechanism includes:

[0010] A stirring shaft 2, one end of which is rotatably mounted on the inner wall of the regeneration box, and the other end of which passes through one side of the regeneration box and is fixedly connected to a driven wheel. The driving wheel is connected to the driven wheel through a belt to drive the stirring shaft 2 to rotate.

[0011] As a preferred embodiment of the above technical solution, the driving mechanism includes:

[0012] The motor is installed on the outside of the regeneration box through a motor seat, and one end of the crankshaft away from the stirring shaft is fixedly connected to the output end of the motor.

[0013] As a preferred embodiment of the above technical solution, the sliding mechanism includes:

[0014] A slide rail, wherein the slide rail is fixedly connected to the base;

[0015] The pulley is fixed on the outer wall of the regeneration box and slides in cooperation with the slide rail.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model uses the first stirring mechanism and the second stirring mechanism to facilitate the organic solvent to penetrate the surface of the hydrogenation reaction catalyst and be evenly distributed, thereby improving the efficiency of the hydrogenation reaction catalyst in adsorbing the organic solvent and quickly removing organic matter and other impurities on the surface of the hydrogenation catalyst;

[0018] 2. The utility model can drive the regeneration box to move back and forth continuously through the swing mechanism, so that the organic solvent is fully in contact with the hydrogenation reaction catalyst, further improving the dissolution efficiency of the organic solvent on the surface of the hydrogenation reaction catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure diagram of a regeneration device for a phenylenediamine hydrogenation reaction catalyst in an embodiment is shown;

[0020] Figure 2 It is shown that Figure 1 A in the figure is an enlarged structural diagram.

[0021] Description of reference numerals:

[0022] 1. Base; 2. Slide rail; 3. Vertical plate; 4. Regeneration box; 5. Pulley; 6. Motor base; 7. Motor; 8. Crankshaft; 9. Stirring shaft 1; 10. Stirring blade 1; 11. Stirring shaft 2; 12. Stirring blade 2; 13. Driving wheel; 14. Driven wheel; 15. Belt; 16. Connecting sleeve; 17. Connecting rod. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0024] Example

[0025] like Figure 1 and Figure 2 As shown, a regeneration device for a catalyst for hydrogenation reaction of diphenylamine comprises a base 1 and a regeneration box 4 mounted on the base 1 by a sliding mechanism, a top opening of the regeneration box 4 is provided with a detachable sealing cover for preventing splashing of an organic solvent, a sliding mechanism is used to limit the trajectory of movement of the regeneration box 4 above the base 1, a drain pipe is provided on one side of the regeneration box 4, a solenoid valve is provided on the drain pipe, and the organic solvent located inside the regeneration box 4 is discharged by controlling the drain pipe through the solenoid valve, a first stirring mechanism and a second stirring mechanism are provided inside the regeneration box 4, a plurality of groups of the second stirring mechanism can be provided, which are respectively located on both sides of the first stirring mechanism, a driving mechanism and a swinging mechanism connected to the driving mechanism are provided outside, the driving mechanism drives the regeneration box 4 to shake through the swinging mechanism while driving the first stirring mechanism and the second stirring mechanism to stir the hydrogenation reaction catalyst.

[0026] The organic solvent and the hydrogenation catalyst inside the regeneration box 4 are stirred by the first stirring mechanism and the second stirring mechanism, so that the organic solvent can penetrate the surface of the hydrogenation reaction catalyst and be evenly distributed, thereby improving the hydrogenation reaction catalyst's ability to adsorb the organic solvent and quickly removing organic matter and other impurities on the surface of the hydrogenation catalyst.

[0027] like Figure 1 and Figure 2 As shown, the swing mechanism includes a crankshaft 8, and the outer ring rotating sleeve of the crankshaft 8 is provided with a connecting sleeve 16. The connecting sleeve 16 can only rotate on the outer ring of the crankshaft 8. The outer wall of the connecting sleeve 16 is fixedly connected to a connecting rod 17. The end of the connecting rod 17 away from the connecting sleeve 16 is installed with a vertical plate 3 through a hinge seat. The setting of the hinge seat makes the connecting rod 17 only rotate with the connection point as the axis. The vertical plate 3 is fixedly connected to the base 1.

[0028] When the driving mechanism drives the crankshaft 8 to rotate, since the vertical plate 3 is fixed on the base 1, the rotation of the crankshaft 8 will pull the regeneration box 4 to move back and forth along the trajectory of the sliding mechanism through the connecting sleeve 16 and the connecting rod 17, so that the organic solvent is fully in contact with the hydrogenation reaction catalyst, further improving the dissolution efficiency of the organic solvent on the surface of the hydrogenation reaction catalyst.

[0029] like Figure 1As shown, the first stirring mechanism includes a stirring shaft 9, one end of which is rotatably mounted on the inner wall of the regeneration box 4, and the other end passes through one side of the regeneration box 4 and is fixedly connected to the crankshaft 8, and the outer ring fixed sleeve is provided with a driving wheel 13, and the driving wheel 13 is provided with a plurality of belt grooves for driving a plurality of groups of second stirring mechanisms, and the stirring shaft 9 is fixedly connected with a stirring blade 10 arranged inside the regeneration box 4.

[0030] The crankshaft 8 will drive the stirring shaft 9 connected thereto to rotate synchronously while rotating. The rotation of the stirring shaft 9 will drive the driving wheel 13 located outside the regeneration tank 4 and the stirring blade 10 located inside the regeneration tank 4 to rotate together, and the stirring blade 10 will stir the organic solvent and hydrogenation catalyst inside the regeneration tank 4.

[0031] like Figure 1 As shown, the second stirring mechanism includes a stirring shaft 11, one end of which is rotatably mounted on the inner wall of the regeneration box 4, and the other end passes through one side of the regeneration box 4 and is fixedly connected to a driven wheel 14. The driven wheel 14 can be provided with a plurality of belt grooves for driving the second stirring mechanism adjacent thereto. The driving wheel 13 is transmission-connected to the driven wheel 14 via a belt 15 for driving the stirring shaft 11 to rotate. The stirring shaft 11 is fixedly connected to a stirring blade 12 arranged inside the regeneration box 4.

[0032] When the driving wheel 13 rotates, it will drive the stirring shaft 11 to rotate through the belt 15 and the driven wheel 14. The rotation of the stirring shaft 11 will drive the stirring blade 12 to stir the organic solvent and the hydrogenation catalyst located inside the regeneration box 4.

[0033] like Figure 1 As shown, the driving mechanism includes a motor 7, which is installed on the outside of the regeneration box 4 through a motor base 6. The motor base 6 is stepped so that the rotation of the crankshaft 8 will not be disturbed. The end of the crankshaft 8 away from the stirring shaft 9 is fixedly connected to the output end of the motor 7, and the motor 7 and the stirring shaft 9 are located on the same axis.

[0034] The starting motor 7 can drive the crankshaft 8 to rotate with the stirring shaft 9 as the axis. The rotation of the stirring shaft 9 can drive the first stirring mechanism and the second stirring mechanism to stir, and can also drive the regeneration box 4 to move back and forth horizontally, so that the organic solvent and the hydrogenation catalyst shake at the same time during the stirring process.

[0035] like Figure 1 As shown, the sliding mechanism includes a slide rail 2 and a pulley 5. The slide rail 2 is fixedly connected to the base 1. The pulley 5 is fixed to the outer wall of the regeneration box 4 and slides with the slide rail 2. There are two slide rails 2, and anti-slip blocks are provided at the ends to prevent the pulley 5 from derailing.

[0036] The setting of the slide rail 2 limits the moving track of the regeneration box 4, increasing the stability of the device operation. At the same time, the anti-slip block set at the end of the slide rail 2 can effectively prevent the regeneration box 4 from derailing.

[0037] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A regeneration device for a phenylenediamine hydrogenation reaction catalyst, comprising a base (1) and a regeneration box (4) mounted on the base (1) by a sliding mechanism, characterized in that: The regeneration box (4) is internally installed with a first stirring mechanism and a second stirring mechanism, and externally installed with a driving mechanism and a swinging mechanism connected to the driving mechanism, wherein the driving mechanism drives the regeneration box (4) to shake through the swinging mechanism while driving the first stirring mechanism and the second stirring mechanism to stir the hydrogenation reaction catalyst; The swing mechanism comprises a crankshaft (8), an outer ring rotating sleeve of the crankshaft (8) is provided with a connecting sleeve (16), an outer wall of the connecting sleeve (16) is fixedly connected to a connecting rod (17), an end of the connecting rod (17) away from the connecting sleeve (16) is mounted with a vertical plate (3) via a hinge seat, and the vertical plate (3) is fixedly connected to the base (1).

2. A regeneration device for a phenylenediamine hydrogenation reaction catalyst according to claim 1, characterized in that: The first stirring mechanism comprises: A stirring shaft (9), one end of which is rotatably mounted on the inner wall of the regeneration box (4), and the other end of which passes through one side of the regeneration box (4) and is fixedly connected to the crankshaft (8), and an outer ring fixed sleeve is provided with a driving wheel (13), and the stirring shaft (9) is fixedly connected to a stirring blade (10) arranged inside the regeneration box (4).

3. A regeneration device for a phenylenediamine hydrogenation reaction catalyst according to claim 2, characterized in that: The second stirring mechanism comprises: A second stirring shaft (11), one end of which is rotatably mounted on the inner wall of the regeneration box (4), and the other end of which passes through one side of the regeneration box (4) and is fixedly connected to a driven wheel (14), the driving wheel (13) being transmission-connected to the driven wheel (14) via a belt (15) and used to drive the second stirring shaft (11) to rotate, and the second stirring shaft (11) is fixedly connected to a second stirring blade (12) arranged inside the regeneration box (4).

4. The regeneration device for a phenylenediamine hydrogenation reaction catalyst according to claim 1, characterized in that: The driving mechanism includes: A motor (7) is installed on the outside of the regeneration box (4) through a motor base (6), and one end of the crankshaft (8) away from the stirring shaft (9) is fixedly connected to the output end of the motor (7).

5. The regeneration device for a phenylenediamine hydrogenation reaction catalyst according to claim 1, characterized in that: The sliding mechanism includes: A slide rail (2), wherein the slide rail (2) is fixedly connected to the base (1); A pulley (5) is fixed to the outer wall of the regeneration box (4) and slides in cooperation with the slide rail (2).

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